Well my reef tank seems to b doing great with the Marineland LEDs. My ricordias are splitting, my birdsnest is growing nicely, my montis are getting bigger (almost too quickly), war corals expanding, acan is growing, candy canes getting new heads, and the frogspawn seems happy. Maybe I'm just one of the lucky ones? My only real complaint is that the fixture doesn't allow for separate timers for white/blue and blue.